Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung quan » truong quan, trong quan, trung tuan
trung qua » trong qua, trung cua, truong quan
trong van » trong cac
ho chieu » theo chieu, hoc thieu, doi chieu
van toan » van tuan, van tan, van thanh
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - thanh ((trung qua) or (trung quan)) dung trong van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((trung qua) OR (trung quan)) dung trong van toan tap.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((trung qua) or (trung quan)) dung trong van toan tap*.